夜合花的常见病害及处理办法

植物图片 2021-04-06 15:44

夜合花看起非常的美丽,但是这种美丽却并不是不会被破坏的,一些病症常常会成为夜合花的生长的困扰,下面小编就和大家一起来学习一下如何防治病害吧!

夜合花叶枯病发病症状

叶枯病多从叶缘、叶尖侵染发生，病斑由小到大呈现不规则的形状，颜色从红褐色到灰褐色演变，病斑连成片会成大片的枯斑，干枯面积能够达到叶片的1/3~1/2，病斑的边缘往往有一条比病斑还要深的带状存在，生病的部分和健康的部分界限非常的明显。

夜合花发病规律

一般是在7~10月份的时候发生较多，而且多发生在植物的下面叶子上，需要注意的是，株植越是瘦弱就越是容易发病，发病的原因大部分是因为植株生长在高温多湿，通风不良的环境里。

夜合花叶枯病的防治方法

第一，在秋天的时候经已将感染的落叶完全焚毁，不留一丝的痕迹，防治病菌在叶子上过冬。

第二，改善植株的生长环境，尽量破坏病菌的生存环境。

第三，使用杀菌剂，可选择65%代森锌可湿性粉剂600倍液喷洒。

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